Who wouldn’t want to eat a giant oatmeal cookie for breakfast? This overnight breakfast cookie lets you do just that!

No bake, vegan, with just 6 ingredients.
A single serving oatmeal breakfast cookie you can easily customize.
Mix the ingredients together the night before to have a wholesome breakfast the next morning, ready whenever you want it!
Readers also love this Almond Flour Banana Bread

The “single lady” breakfast cookie was inspired by two things.
First was an email I received from a reader who asked if I could come up with a recipe similar to the Erin Baker Breakfast Cookies sold in stores.
Her email reminded me of an idea I’d written down years ago but had never actually gotten around to trying.
There’s a recipe on my blog for Snickerdoodle Oatmeal, and one day a blogger named Abbie (whose blog is sadly no longer in existence) recreated my oatmeal recipe in the form of a giant breakfast cookie and posted about it on her blog.
She combined all of the ingredients in a bowl, spread the batter on a plate, and let the extra moisture evaporate overnight so it turned into a soft and delicious no-bake snickerdoodle breakfast cookie.
Her idea was so brilliant, and I don’t know why I didn’t try it until now! For more healthy breakfast ideas, be sure to check out the link below:

The flavor possibilities are endless…
Peanut Butter
Chocolate Brownie
Coconut
Banana Walnut
Cinnamon Raisin
Espresso Chocolate Chip
Cookie Dough
Watch the overnight breakfast cookie video above.

Overnight Breakfast Cookie
Ingredients
- 1/2 cup rolled oats
- 1/2 cup mashed banana or applesauce
- 2 tbsp milk of choice
- 1 1/2 to 2 tbsp protein powder or flour, such as almond or oat flour
- 1 to 2 tbsp nut butter or allergy-friendly sub
- 1/8 tsp salt
- optionsl add-ins such as chia seeds, raisins, shredded coconut, or chocolate chips
Instructions
- Stir all ingredients together. Spread out on a plate. Refrigerate overnight, uncovered or with a paper towel placed gently on top. Frost if desired, or add toppings such as melted peanut butter and chocolate. Enjoy!View Nutrition Facts
Notes
More Healthy Breakfast Options
Or these flourless Keto Blueberry Muffins






















I made a pumpkin one and put dark chocolate dreams PB&CO on top and it was my favorite breakfast I have had all month. I love how you don’t have to use an oven or cook anything at all. Thanks for the recipe!
nice i love chocolate.Great idea thanks for sharing it!
Love the recipes you post with protein powder. Keep them up!
Can you list specific products you used to get that nutritional info?
Can you prep a few in one night and eat throughout the week?
Hi Katie,
Yum!! Like all of your recipes, this is so delicious! Thanks for the great recipe.
I would love to be a part of your team.
Hoping to hear from you soon!
Christina
has anyone tried adding the chia seeds yet? i’m wondering if it would firm it up a bit more. also, how much chia seeds should one add???
Mine never “hardened” up, the goo tastes good, but I need to take it somewhere, wondering if I could toss it in the oven for a few minutes
You can!
OMG! I hate oatmeal but decided to give this a try as I had some protein powder. Wow. .It was delicious, huge and had me so filled that I did not snack the entire day until 5pm!!!! LOVE IT! Now I make this every other night for the next morning! THANK YOU Katie!
My cookie is still really mushy this morning. It doesn’t lift off the plate, I would have to eat it with a fork or spoon. Anyway to make it more firm?